The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 15, 1995
Filed:
Nov. 10, 1993
Applicant:
Inventors:
Alistair A Sutherland, Swindon, GB;
John M Hudson, Swindon, GB;
Assignee:
Raychem Limited, London, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524140 ; 524127 ; 524141 ; 524575 ;
Abstract
Gels of hard-elastomer-hard block copolymers with at least 300 parts of extending liquid per 100 parts of the copolymer contain at least 50 parts (per 100 parts of copolymer) of a stabilizing additive which resists migration of PVC plasticizers into the gel when in contact with a plasticized PVC article. Styrene-(ethylene-butylene)-styrene triblock copolymers with organic phosphate stabilizers are preferred, these stabilizers tending to raise the gel softening temperature.